Can you solve what an MIT professor once called 'the hardest logic puzzle ever'?

Logic puzzles can teach reasoning in a fun way that doesn't feel like work.

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  • Logician Raymond Smullyan devised tons of logic puzzles, but one was declared by another philosopher to be the hardest of all time.
  • The problem, also known as the Three Gods Problem, is solvable, even if it doesn't seem to be.
  • It depends on using complex questions to assure that any answer given is useful.
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10 logical mistakes you make every day — and what to do instead

Do you ever act irrationally? You probably have. Let's take a look at how to fix that. 

The thinker, thinking his way out of a logic fallacy.

Most of us like to suppose that we are rational people, going about our days with at least some attempt at using logic and reason. However, logical fallacies and simple mistakes are everywhere. Some wrong ways of thinking are so familiar or so easy to overlook that it is possible you're unaware that there is even a mistake being made.

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How Richard Dawkins will win you over to his side

Author, speaker, and public intellectual Richard Dawkins is a first-class debater on subjects as grand and reaching as the very existence (or lack thereof) of a master creator. But he's got a simple yet highly effective technique to win people over to see his point of view. Find out what it is right here.

Many people would like to have a one-on-one argument with renowned professor, author, and all-around big thinker Richard Dawkins. He's most one of the world's most prominent public intellectuals and has written over a dozen books on matters as wide-ranging as atheism and science. Because he attacks such deeply held beliefs, many people disagree with him. But how is he so effective at what he does? Simple. He imagines his argument from the other side's perspective. That way, Richard Dawkins posits, there's a much higher chance that he can land his point. Richard Dawkins' new book is Science in the Soul: Selected Writings of a Passionate Rationalist.

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Why creative people are actually highly logical

Is creativity a wild and free state of mind, or is it actually a pattern that others just can't recognize?

To ensure your survival, your brain evolved to avoid one thing: uncertainty. As neuroscientist Beau Lotto points out, if your ancestors wondered for too long whether that noise was a predator or not, you wouldn't be here right now. Our brains are geared to make fast assumptions, and questioning them in many cases quite literally equates to death. No wonder we're so hardwired for confirmation bias. No wonder we'd rather stick to the status quo than risk the uncertainty of a better political model, a fairer financial system, or a healthier relationship pattern. But here's the catch: as our brains evolved toward certainty, we simultaneously evolved away from creativity—that's no coincidence; creativity starts with a question, with uncertainty, not with a cut and dried answer. To be creative, we have to unlearn millions of years of evolution. Creativity asks us to do that which is hardest: to question our assumptions, to doubt what we believe to be true. That is the only way to see differently. And if you think creativity is a chaotic and wild force, think again, says Beau Lotto. It just looks that way from the outside. The brain cannot make great leaps, it can only move linearly through mental possibilities. When a creative person forges a connection between two things that are, to your mind, so far apart, that's a case of high-level logic. They have moved through steps that are invisible to you, perhaps because they are more open-minded and well-practiced in questioning their assumptions. Creativity, it seems, is another (highly sophisticated) form of logic. Beau Lotto is the author of Deviate: The Science of Seeing Differently.

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